IN2020 - H?st 2020

Lecture 6 - Experiment Design

Pensum this week is ch. 3 until and including the interaction effect. You do not yet need to read about errors/bias, this will be part of the following lecture (titled: From errors to descriptive statistics). Additional literature with an example we will use for all 3 remaining "Quantitative research" lectures is this paper: Touch Type Research Example (read mainly introduction and the sections/paragraphs that concern the experiment's design/set-up).

Prologue (non-, quasi- and true experiment)

 

Lecture 6 - Slides

Module A (one whole lecture-video, structure below, feel free to pause whenever needed)

Structure

?Assignment of participants/subjects to groups in the experiment (Between and Within-group design)
?Keyboard layouts as example
?Typewriter history (QWERTY) and Can we break from QWERTY typing?
?Determining the basic experiment structure
?Investigating a single independent variable (= what was started with: between or within-group design)
?Investigating more than one independent variable (Factorial design; also a clear between- or within-group design possible)
?(Dis)Advantages of between- and within-group design
?Split-plot as a smart combination of between- and within-group design

? Interaction Effect, in Factorial Designs (2+ factors)

(+video with types of interactions)

?Examples of experiment set-ups from research and former student assignments

?Touch type research example, further explanatory video on Latin Square Design
?Ifi-research on radios for elderly
?Student assignment example on Android OS versions
(+ a YouTuber's iOS versions tests)
 
 

For this and the following weeks, where you are going to retrace examples of experiment design and statistical analysis of them in the seminars, it is beneficial to have either Excel or SPSS (Where to get/How to install here) available.